TOPIC: Is there some wrong?

There is four type cars,I want to caculate how many people have speciel cars more than one,I design an Array (5 point choice) question so that people can select 1 or 2 or 3...for every tpye,but it did not work.
It is my first time to use javascript in limesurvey,and I have read the docs and searched in this forum,for my poor english,I still can not find the answer.Is there something wrong?